# Cylana EASM vs Halo Security Attack Surface Discovery: side-by-side comparison (2026)

[Cylana EASM](https://cybersectools.com/tools/cylana-easm) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Cylana](https://cybersectools.com/companies/cylana). [Halo Security Attack Surface Discovery](https://cybersectools.com/tools/halo-security-attack-surface-discovery) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Halo Security](https://cybersectools.com/companies/halo-security). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions) picks Palo Alto Networks Cortex Xpanse, Microsoft Defender EASM, Mandiant Attack Surface Management and 4 more.

## Side-by-side comparison

| | Cylana EASM | Halo Security Attack Surface Discovery |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Cylana | Halo Security |
| Headquarters | – | – |

### Use cases and capabilities

| | Cylana EASM | Halo Security Attack Surface Discovery |
|---|---|---|
| Network Discovery | Yes | – |
| Subdomain Enumeration | Yes | Yes |
| Attack Detection | Yes | – |
| Reconnaissance | Yes | – |
| Security Scanning | Yes | – |
| Inventory | Yes | – |
| Network Mapping | Yes | – |
| Visibility | Yes | – |
| Vulnerability | Yes | – |
| Digital Risk Protection | Yes | – |
| Network Scanning | – | Yes |
| Port Scanning | – | Yes |

### Core features

**Cylana EASM**

5 features listed. Sign in on the page to see them.

**Halo Security Attack Surface Discovery**

10 features listed. Sign in on the page to see them.

### Integrations

**Cylana EASM**

No integrations listed.

**Halo Security Attack Surface Discovery**

5 integrations listed. Sign in on the page to see them.

## Cylana EASM vs Halo Security Attack Surface Discovery FAQ

Common questions when comparing Cylana EASM vs Halo Security Attack Surface Discovery for external attack surface management.

### What is the difference between Cylana EASM and Halo Security Attack Surface Discovery?

**Cylana EASM**: AI-powered EASM platform for digital asset discovery and monitoring, built by Cylana.

**Halo Security Attack Surface Discovery**: Discovers and inventories internet-facing assets including subdomains, IPs, and apps, built by Halo Security.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Cylana EASM and Halo Security Attack Surface Discovery?

**Cylana EASM** is made by Cylana. **Halo Security Attack Surface Discovery** is made by Halo Security. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Cylana EASM a good alternative to Halo Security Attack Surface Discovery?

Often, yes. Cylana EASM and Halo Security Attack Surface Discovery are both External Attack Surface Management products, and both cover Subdomain Enumeration. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Cylana EASM vs Attaxion](https://cybersectools.com/compare/attaxion-vs-cylana-easm)
- [Cylana EASM vs SurfaceDiff](https://cybersectools.com/compare/cylana-easm-vs-surfacediff)
- [Cylana EASM vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/cylana-easm-vs-ddactic-attack-surface-discovery)
- [Halo Security Attack Surface Discovery vs Attaxion](https://cybersectools.com/compare/attaxion-vs-halo-security-attack-surface-discovery)
- [Halo Security Attack Surface Discovery vs SurfaceDiff](https://cybersectools.com/compare/halo-security-attack-surface-discovery-vs-surfacediff)
- [Halo Security Attack Surface Discovery vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-halo-security-attack-surface-discovery)

## Alternatives to each

- [See all Cylana EASM alternatives](https://cybersectools.com/alternatives/cylana-easm)
- [See all Halo Security Attack Surface Discovery alternatives](https://cybersectools.com/alternatives/halo-security-attack-surface-discovery)

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Source: https://cybersectools.com/compare/cylana-easm-vs-halo-security-attack-surface-discovery

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/cylana-easm.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Cylana EASM and Halo Security Attack Surface Discovery: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md